rte_vdpa_dev.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2018 Intel Corporation
 */

#ifndef _RTE_VDPA_H_DEV_
#define _RTE_VDPA_H_DEV_

#include <stdbool.h>

#include "rte_vhost.h"

#define RTE_VHOST_QUEUE_ALL UINT16_MAX

struct rte_vdpa_dev_ops {
    int (*get_queue_num)(struct rte_vdpa_device *dev, uint32_t *queue_num);

    int (*get_features)(struct rte_vdpa_device *dev, uint64_t *features);

    int (*get_protocol_features)(struct rte_vdpa_device *dev,
            uint64_t *protocol_features);

    int (*dev_conf)(int vid);

    int (*dev_close)(int vid);

    int (*set_vring_state)(int vid, int vring, int state);

    int (*set_features)(int vid);

    int (*migration_done)(int vid);

    int (*get_vfio_group_fd)(int vid);

    int (*get_vfio_device_fd)(int vid);

    int (*get_notify_area)(int vid, int qid,
            uint64_t *offset, uint64_t *size);

    int (*get_stats_names)(struct rte_vdpa_device *dev,
            struct rte_vdpa_stat_name *stats_names,
            unsigned int size);

    int (*get_stats)(struct rte_vdpa_device *dev, int qid,
            struct rte_vdpa_stat *stats, unsigned int n);

    int (*reset_stats)(struct rte_vdpa_device *dev, int qid);

    void *reserved[2];
};

struct rte_vdpa_device {
    TAILQ_ENTRY(rte_vdpa_device) next;
    struct rte_device *device;
    struct rte_vdpa_dev_ops *ops;
};

__rte_experimental
struct rte_vdpa_device *
rte_vdpa_register_device(struct rte_device *rte_dev,
        struct rte_vdpa_dev_ops *ops);

__rte_experimental
int
rte_vdpa_unregister_device(struct rte_vdpa_device *dev);

__rte_experimental
int
rte_vhost_host_notifier_ctrl(int vid, uint16_t qid, bool enable);

__rte_experimental
int
rte_vdpa_relay_vring_used(int vid, uint16_t qid, void *vring_m);

#endif /* _RTE_VDPA_DEV_H_ */